handle /usr/bin location of sensors command in example scripts printed by sensors-detect

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@4568 7894878c-1315-0410-8ee3-d5d059ff63e0

prog/detect/sensors-detect

@@ -5632,7 +5632,9 @@ sub main
   print "#----cut here----\n".
         $modprobes.
         "# sleep 2 # optional\n".
-        "/usr/local/bin/sensors -s # recommended\n".
+        (-e '/usr/bin/sensors' ?
+          "/usr/bin/sensors -s # recommended\n" :
+          "/usr/local/bin/sensors -s # recommended\n") .
         "#----cut here----\n\n";
 
   print "If you have some drivers built into your kernel, the list above will\n".